Cerebral Angiography Overview

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Questions and Answers

What is the primary purpose of cerebral angiography?

  • To measure intracranial pressure
  • To perform a brain biopsy
  • To evaluate brain function
  • To visualize cerebral blood vessels (correct)

Which statement about digital subtraction angiography is true?

  • It enhances bone imaging.
  • It requires no contrast dye.
  • It is primarily used for surgery
  • It only shows blood vessels. (correct)

What should a client be instructed to do before undergoing cerebral angiography?

  • Eat a light meal.
  • Drink fluids until the procedure.
  • Refrain from food or fluids for at least 6 hours. (correct)
  • Engage in mild exercise.

Why is it important to assess a client's history of allergies prior to the procedure?

<p>To determine the risk of contrast media reaction. (D)</p> Signup and view all the answers

What sensation may a client experience after the injection of dye during the procedure?

<p>A metallic taste and sensation of warmth (D)</p> Signup and view all the answers

What is a critical nursing action immediately postprocedure for a client who underwent cerebral angiography?

<p>Closely monitor the puncture site for clotting. (A)</p> Signup and view all the answers

In which area of the body is the catheter typically inserted for cerebral angiography?

<p>Neck or groin (C)</p> Signup and view all the answers

What is a therapeutic indication for performing cerebral angiography?

<p>To inject medications for blood clots. (B)</p> Signup and view all the answers

Which statement by the client indicates a misunderstanding of preparation for a cerebral angiography?

<p>I can eat as usual prior to the procedure. (D)</p> Signup and view all the answers

What should be done if bleeding occurs at the catheter site after an angiography procedure?

<p>Notify the provider after applying pressure over the artery. (B)</p> Signup and view all the answers

Which of the following actions is NOT a nursing responsibility during a CT scan?

<p>Provide follow-up care instructions before the procedure. (C)</p> Signup and view all the answers

What is a key consideration for a client who is pregnant and scheduled for a CT scan?

<p>The risks to the fetus should be evaluated against the benefits. (A)</p> Signup and view all the answers

What is a potential complication following an arterial puncture for angiography?

<p>Bleeding or hematoma formation. (A)</p> Signup and view all the answers

Which of the following should be monitored in a client after receiving contrast media during a CT scan?

<p>Kidney function and allergic reactions. (C)</p> Signup and view all the answers

What preparation should a nurse provide to ensure the safety of a client undergoing a CT scan?

<p>Instruct the client on avoiding food and fluid intake. (D)</p> Signup and view all the answers

Which of the following is a priority nursing action after a cerebral angiography procedure?

<p>Monitoring vital signs and performing neuro assessments. (B)</p> Signup and view all the answers

Flashcards

Cerebral Angiography

A medical procedure that uses X-rays to visualize the blood vessels in the brain.

Digital Subtraction Angiography

A type of cerebral angiography where X-rays are taken with the bones and tissues hidden, allowing only the blood vessels to be seen.

Contrast Dye

A substance injected during angiography to help visualize blood vessels on X-rays.

Pre-procedure Considerations (Pregnancy)

When pregnant, weighing the risks to the fetus versus the information gained from procedure is vital.

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Pre-procedure Fasting

The client should avoid food and drinks for a specified time before the procedure (typically 6 hours).

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Allergy Assessment

Checking for allergies to contrast media is crucial.

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Kidney Function Assessment

Checking BUN and blood creatinine levels before angiography helps determine kidney function.

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Post-procedure Monitoring

Closely monitoring the procedure site for clotting after the procedure.

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Cerebral Angiography Procedure

A procedure that uses X-rays and a special dye to examine the blood vessels in the brain.

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Neuro assessments

Evaluations of the client's nervous system to monitor their condition

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CT Scan

A medical imaging technique that uses X-rays to create detailed cross-sectional images of the body.

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Contrast Media

A substance used in medical imaging, such as CT scans, to highlight structures, making them easier to see.

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Pre-CT scan fasting

To avoid complications from contrast media, clients should refrain from food or fluids for at least 4 hours prior to the procedure.

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Client Positioning for CT scan

Clients need to be positioned completely supine and their head secured for a CT scan.

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Post-CT scan monitoring

Following a CT scan, particularly with contrast, monitor for allergic reactions and kidney function.

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Cerebral Angiography Contraindications

Client's with bleeding problems and other health conditions may not be able to undergo this procedure, therefore, are contraindicated.

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Study Notes

Cerebral Angiography

  • Purpose: Visualizes cerebral blood vessels, detects defects/narrowing/obstruction.
  • Procedure: Iodine-based contrast dye injected into an artery (usually groin or neck). X-rays taken.
  • Radiology Department: Conducted in a radiology department.
  • Digital Subtraction Angiography: Hides bones and tissues, shows vessels clearly.
  • Indications: Assessing brain blood flow, identifying aneurysms, defining tumor vascularity, treating blood clots/administering chemotherapy.

Pre-Procedure Considerations

  • Pregnancy: Risk-benefit assessment for the fetus.
  • Fasting: 6 hours prior; clear fluids allowed up to procedure in some cases.
  • Allergies: Assess allergy history; steroids/antihistamines may be given for contrast allergies.
  • Bleeding/Anticoagulants: Increased monitoring for blood clotting.
  • Kidney Function: BUN and creatinine tests to evaluate kidney function to clear the dye.
  • Sedation: Mild sedative for relaxation occasionally used.

Intra-Procedure Actions

  • Positioning: Client on radiology table, head secured.
  • Catheterization: Catheter placed in artery (groin/neck).
  • Dye Injection: Dye injected, images taken.
  • Catheter Removal: Catheter removed, bleeding controlled.
  • Monitoring: Vital signs monitored continuously.

Post-Procedure Actions

  • Clotting Monitoring: Closely monitor the insertion area for clotting.
  • Movement Restrictions: Movement restrictions for a period depending on procedure.
  • Neuro Assessments: Frequent neuro assessments.
  • Vitals Monitoring: Constant monitoring of vital signs.
  • Ice Pack: Apply ice pack to the insertion site.
  • Fluid Intake: Encourage fluid intake to promote contrast excretion.

Complications

  • Bleeding: Potential for bleeding and hematoma formation at the insertion site.
  • Circulation Issues: Check affected extremity for circulation issues.
  • Intervention: Apply pressure over artery if bleeding occurs.

Client Education

  • Immobility: Remain still during the procedure.
  • Voiding: Empty bladder before procedure.
  • Post-Dye Sensation: Metallic taste and warmth are normal sensations after dye injection.

Cerebral Computed Tomography (CT) Scan

  • Purpose: Provides cross-sectional images of the cranial cavity.
  • Contrast Medium: Contrast medium can be used to enhance images.
  • Indications: Identifying tumors/infarctions, abnormalities, monitoring treatment, guiding biopsies.

Pre-Procedure Considerations

  • Pregnancy: Risk-benefit assessment for the fetus.
  • Fasting: 4 hours prior to procedure; clear fluids may not be allowed.
  • Allergies: Assess for shellfish or iodine allergies; consider further assessment.
  • Kidney Function: BUN and creatinine tests to evaluate kidney function.
  • Positioning: Pillows for back support to prevent pain.
  • Metal Removal: Client must remove metal objects (jewelry, hairpins) to prevent interference.

Intra-Procedure Actions

  • Positioning: Client lies supine, head stabilized.
  • Sedation: Sedation is possible but not mandatory.
  • Sounds: Expect various clicking sounds/vibrations.

Post-Procedure Actions

  • Follow-up: No specific follow up required for a routine CT scan.
  • Contrast Monitoring: Monitor for allergic reactions and changes to kidney function if contrast was used.
  • Sedation Monitoring: Monitor client for stability incase sedation is used.

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